{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949540,-0.313646,0.000000,0.000000,0.175319,-0.530766,0.829187,0.000000,-0.259524,0.785688,0.561553,0.000000,-1657027.384662,5016521.542778,3561449.172621,1],    "boundingVolume": {    "region": [1.889778,0.596221,1.889876,0.596303,0.000000,7.989545]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/12_1444190.b3dm"}}}